The famous physicist Steven Weinberg once called up his fellow scientist, Richard Feynmann, and exclaimed excitedly "Richard, I've figured out why all electrons are identical - they're all the same electron!!" Weinberg was joking, of course, but he was invoking the same idea that you are.
An electron can exist in many states and locations, but not all of them have equal probability. The large space of accessible states means that the possibilities are virtually endless and the probabilistic nature of QM means that it's not entirely predictable; but reality occurs when the electron is forced to transition to a new state; it could transition to any of its accessible states but the choices are strongly constrained by probabilities.

Mark M.
05/31/17